Cathead pulley



March 15, 1932. -c. D. SPRACHER ET AL 1,849,337

CATHEAD PULLEY Filed March 19, 1928 INVENTO F25 CLIFFORD D. Emmi-1E2 HLTON M. REID Patented Mar. 15, 1932 r v u I UNITED STATES P TENT OFFIC CLIFFORD D. SPRAGHER, or LONG BEACH, ANDALTON M. manor wnrrrmn;

, CALIFORNIA.

CATHEAD PULLEY.

i Application filed March 19, 1928. serial ms, 262,793.

This invention relates to an automatic cat and a ring 9 fits against the shoulder and head pulley particularly useful in the drawagainst the'bearing 7 to hold said bearing in ing works of an oil well although it also position. A felt washer 1'0-fits against the might be used in other places. outside of the shoulder 8 and is secured at its 5 An object of our invention is to provide a outer edge to'the drum '5, thuspreventing 55 cat head pulley with clutch means so that any grease, oil, etc;, from entering the fricit can be rotated with, or may idle upon the tional clutch, as will be further described. drive haft, The bearing 6 is held in position by a ring Another object is to provide a cat head 11 against which a nut 12 is screwed. The

which can be secured to and rotate with the nut 12 is held against rotation by suitable e0 drive shaft if desired. means of any desirable type- Still another object is to provide a cat head A movable clutch member 13 is slidably which can be readily attached to the end of keyed to the sleeve 3, and this clutch memthe u ual driv haft. ber engages one end of the drum 5, which end An advantage of our cat head resides in the is recessed as at- 14 to receive the clutch. v

fact that it is mounted on anti-frictional 'While we have shown the clutchmember as bearings, thus rotating evener and being of the comb type, we may use a disc type or more effective in operation, other suitable clutch. It is desirable at times A further advantage resides in the releasthat the drum 5 rotate With the shaft 1 Withan able clutch o that th at h ad may otat out the use of the clutch 13, and for this freely or with the drive shaft if desired. PH P Se We employ a key 15 which fits into Other objects, advantages, and features of notches 16, 16, in the sleeve 3 and fits beinvention may appear in the accompanying tween lugs 17, 17, formed on the end of the drawings, the subjoined detailed descripdrum 5. v 25 tions, and the appended claims. A bolt 18 screws into the end of the shaft In the drawings- 1, and a nut 19 on the bolt screws against the Fig. 1 is an end view of the cat head pulley. key 15, thus holding the key in position and Fig. 2 is a longitudinal sectional view of non-rotatably holding the drum on the the same. sleeve. 30 Fig, 3 is an end iew of the cat head mount- In cat heads heretofore in use it has been ing sleeve. found unpractical to use wire cables, but wlth Fig. 4 is a fragmentary side elevation of our cat head, the wire cable 20 is permanently th bl nd mounting means. secured at one end thereof to the drum 5 by Fig. 5 is a perspective view of our cat head a threaded plug 21 which screws into the 35 in operative position. drum. The other end of the cable extends to Referring more particularly to the drawthe pipe 22 to operate upon the same as may ings, the numeral 1 indicates the usual drive be desired; shaft upon the end of which our cat head A tubular hand hold 23 is provided pulley 2 is mounted. A mounting sleeve 3 through which the cable 20 extends to propfits onto the end of the shaft 1, and is nonerly feed the cable upon the drum. Any derotatably held thereon by a suitable key 4. sirable operating means 24 may be provided A drum 5 comprises the reel upon which to actuate the clutch 13 and cause the drum the cable, rope or the like is wound, and this to rotate. drum is mounted upon anti-frictional bear- Having described our invention, we claim: ings 6,7, which bearings are positioned be 1. A cat head pulley adapted to be tween the drum and the sleeve 3. While we mounted on a shaft, and comprising a sleeve have shown these bearings as of the tapered fitting upon the shaft, means securing the roller type, any other suitable design may be sleeve to the shaft, a drum,-anti-friction bearemployed. ings between the drum and sleeve, a key, A shoulder 8 is provided on the sleeve 3, means on the sleeve engageable by the key,

and means on the drum engageable by the key, and means holding said key into engagement with both the aforesaid means whereby the drum is held against rotation relative to said sleeve.

2. A cat head pulley adapted to be mounted on a shaft, and comprising a sleeve fitting upon the shaft, means securing the sleeve to the shaft, a drum, anti-friction bearings between the drum and sleeve, a key, said sleeve having slots in the end thereof into which the key is adapted to fit, lugs, on the drum between which the key is adapted to rest, and a bolt extending through the key into the end ofthe shaft whereby said key is held in operative positionto hold said drum against rotation relative to the sleeve.

In testimony-whereof, Wev affix our sigmatures;

" CLIFFORD D. SPRAC HER.

ALTON M.v REID. 

